Ultramarine

#010e9d

Color Harmonies

Mathematical Matches
Monochromatic
#071bfd#0113d0#010e9d#01096a#000538
Analogous
#015c9d#010e9d#42019d
Complementary
#010e9d#9d9001
Split-Complementary
#010e9d#9d4201#5c9d01
Triadic
#010e9d#9d010e#0e9d01
Tetradic (Double Complementary)
#010e9d#9d015c#9d9001#019d42

Readability & Contrast

Accessibility Audit & WCAG Compliance

Use Case: Standard White Text

White Text

AAA PASS
The Future
is Color.
Contrast Ratio13.53:1
Use Case: Standard Black Text

Black Text

FAIL
The Future
is Color.
Contrast Ratio1.55:1
Optimized AAA Text

Suggested Text

AAA PASS
The Future
is Color.
Contrast Ratio7.27:1
Recommended Monochrome
#b2b9ff
Optimized AAA Background

Suggested Background

AAA PASS
The Future
is Color.
Contrast Ratio7.25:1
Suggested Complement
#d1c000

Vision Deficiency Simulations

Protanopia

Red Blind

Deuteranopia

Green Blind

Tritanopia

Blue Blind

Achromatopsia

Total Color Blind

Developer Tools

Ready-to-use snippets for your codebase.

Closest Standard Class

bg-blue-900Approx

Arbitrary Value (JIT)

<div class="bg-[#010e9d] text-white">
  <!-- Your Content -->
</div>

tailwind.config.js

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'brand': '#010e9d',
      }
    }
  }
}